[ADD] convenience res_users._is_admin

Checks that the provided user (or user in the provided dataset):

* is the superadmin
* or is a member of group_erp_manager

There are a number of hand-rolled "is_admin" checks in the codebase some
of which are fairly gnarly. The shortcut provides a single point of
contact, avoids forgetting about cases (e.g. SUPERUSER_ID) and is
relatively convenient when checking a user which is not the "current"
user.

closes #8146

addons/account/models/chart_template.py

@@ -702,7 +702,7 @@ class WizardMultiChartsAccounts(models.TransientModel):
         all the provided information to create the accounts, the banks, the journals, the taxes, the
         accounting properties... accordingly for the chosen company.
         '''
-        if self._uid != self.sudo()._uid and not self.env.user.has_group('base.group_erp_manager'):
+        if not self.env.user._is_admin():
             raise AccessError(_("Only administrators can change the settings"))
         ir_values_obj = self.env['ir.values']
         company = self.company_id

addons/base_import_module/controllers/main.py

@@ -17,7 +17,7 @@ class ImportModule(Controller):
     def check_user(self, uid=None):
         if uid is None:
             uid = request.uid
-        is_admin = request.registry['res.users'].has_group(request.cr, uid, 'base.group_erp_manager')
+        is_admin = request.registry['res.users']._is_admin(request.cr, uid, [uid])
         if not is_admin:
             raise openerp.exceptions.AccessError("Only administrators can upload a module")
 

addons/google_calendar/google_calendar.py

@@ -921,7 +921,7 @@ class google_calendar(osv.AbstractModel):
         return url
 
     def can_authorize_google(self, cr, uid, context=None):
-        return self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager')
+        return self.pool['res.users']._is_admin(cr, uid, [uid])
 
     def set_all_tokens(self, cr, uid, authorization_code, context=None):
         gs_pool = self.pool['google.service']

addons/google_drive/google_drive.py

@@ -46,9 +46,8 @@ class config(osv.Model):
     def get_access_token(self, cr, uid, scope=None, context=None):
         ir_config = self.pool['ir.config_parameter']
         google_drive_refresh_token = ir_config.get_param(cr, SUPERUSER_ID, 'google_drive_refresh_token')
-        user_is_admin = self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager')
         if not google_drive_refresh_token:
-            if user_is_admin:
+            if self.pool['res.users']._is_admin(cr, uid, [uid]):
                 model, action_id = self.pool['ir.model.data'].get_object_reference(cr, uid, 'base_setup', 'action_general_configuration')
                 msg = _("You haven't configured 'Authorization Code' generated from google, Please generate and configure it .")
                 raise openerp.exceptions.RedirectWarning(msg, action_id, _('Go to the configuration panel'))

addons/sale_stock/res_config.py

@@ -47,7 +47,7 @@ class sale_configuration(osv.osv_memory):
         }
 
     def set_sale_defaults(self, cr, uid, ids, context=None):
-        if uid != SUPERUSER_ID and not self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager'):
+        if not self.pool['res.users']._is_admin(cr, uid, [uid]):
             raise openerp.exceptions.AccessError(_("Only administrators can change the settings"))
         ir_values = self.pool.get('ir.values')
         wizard = self.browse(cr, uid, ids)[0]

openerp/addons/base/ir/ir_attachment.py

@@ -104,7 +104,7 @@ class ir_attachment(osv.osv):
 
     def force_storage(self, cr, uid, context=None):
         """Force all attachments to be stored in the currently configured storage"""
-        if not self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager'):
+        if not self.pool['res.users']._is_admin(cr, uid, [uid]):
             raise AccessError(_('Only administrators can execute this action.'))
 
         location = self._storage(cr, uid, context)

openerp/addons/base/res/res_config.py

@@ -547,7 +547,7 @@ class res_config_settings(osv.osv_memory, res_config_module_installation_mixin):
             context = {}
 
         context = dict(context, active_test=False)
-        if uid != SUPERUSER_ID and not self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager'):
+        if not self.pool['res.users']._is_admin(cr, uid, [uid]):
             raise openerp.exceptions.AccessError(_("Only administrators can change the settings"))
 
         ir_values = self.pool['ir.values']

openerp/addons/base/res/res_users.py

@@ -568,6 +568,10 @@ class res_users(osv.osv):
                    (uid, module, ext_id))
         return bool(cr.fetchone())
 
+    @api.multi
+    def _is_admin(self):
+        return self.id == openerp.SUPERUSER_ID or self.sudo(self).has_group('base.group_erp_manager')
+
     def get_company_currency_id(self, cr, uid, context=None):
         return self.browse(cr, uid, uid, context=context).company_id.currency_id.id
 
@@ -933,7 +937,7 @@ class users_view(osv.osv):
     def fields_get(self, cr, uid, allfields=None, context=None, write_access=True, attributes=None):
         res = super(users_view, self).fields_get(cr, uid, allfields, context, write_access, attributes)
         # add reified groups fields
-        if uid != SUPERUSER_ID and not self.pool['res.users'].has_group(cr, uid, 'base.group_erp_manager'):
+        if not self.pool['res.users']._is_admin(cr, uid, [uid]):
             return res
         for app, kind, gs in self.pool['res.groups'].get_groups_by_application(cr, uid, context):
             if kind == 'selection':